| 单词 | farad |
| 例句 | The energy is in joules for a charge in coulombs, voltage in volts, and capacitance in farads. College Physics for AP Courses 2015-08-12T00:00:00Z If it be a charged body insulated in space its capacity should be extremely small, less than one-thousandth of a farad. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z Microfarad, mī-krō-far′ad, n. one-millionth of a farad, the practical unit of electrical capacity. Chambers's Twentieth Century Dictionary (part 2 of 4: E-M) 2012-01-11T03:00:23.770Z The capacity of a condenser which would contain a charge of one coulomb under one volt pressure is the farad. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z Farad is the capacity defined by the condition that a coulomb in a condenser, whose capacity is a farad, establishes a difference of potential of a volt between the armatures. Scientific American Supplement, No. 312, December 24, 1881 The energy is in joules when the charge is in coulombs, voltage is in volts, and capacitance is in farads. College Physics for AP Courses 2015-08-12T00:00:00Z As this unit is inconveniently large, for practical applications the unit microfarad—millionth of a farad—is employed. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The farad is the capacitance of a condenser in which a potential difference of 1 volt causes it to have a charge of 1 coulomb of electricity. The Radio Amateur's Hand Book The farad being inconveniently large for practical use, one-millionth of a farad, called a microfarad, is generally adopted. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z CAPACITY—K.—The farad is that capacity of a body, say a Leyden jar or condenser, which a coulomb of electricity will charge to the potential of a volt. The Story of Electricity The small numerical value of ε0 is related to the large size of the farad. College Physics for AP Courses 2015-08-12T00:00:00Z The unit of electrostatic capacity is the farad. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. Since the farad is far too large for practical purposes a millionth of a farad, or microfarad, whose symbol is mfd., is used. The Radio Amateur's Hand Book A parallel plate capacitor must have a large area to have a capacitance approaching a farad. College Physics for AP Courses 2015-08-12T00:00:00Z If quantities are known in microfarads and are to be used in calculations in which the values of the capacity require to be farads, care should be taken to introduce the proper corrective factor. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. |
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